Zooming in shows salinity and dissolved oxygen are fluctuating heavily alongside the tidal cycle. Can you determine what is causing this?
Q&A: Measurements Along the Tidal Cycle
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Salinity
Q&A: Diagnosing Salinity Spikes
Q&A: Diagnosing Salinity Spikes The figure above shows a time series of salinity from a moored CTD. For most of the deployment, salinity showed frequent downward spikes, dropping from an expected range of 18-26 psu to near zero. Can you determine the cause?...
Q&A: Erratic Profiles
November 2019 Newsletter The data above come from a profiling CTD, deployed in sea conditions that caused approximately 1-meter ship heave. Two things stick out – relatively unchanging salinity data during the downcast, and noisy data during the upcast (shown in light...
Q&A: What is Causing the Difference between Internal and External pH?
The figure above originates from a single Shallow SeaFET V2 pH sensor, which produces two pH values (Internal pH and External pH) from two separate reference sensors. The black X’s indicate pH validation samples. While environmental conditions affect each the...
Q&A: Sudden Increase in Salinity
November 2018 Newsletter The figure above originated from an SBE 37-SMP MicroCAT moored CTD deployed in shallow seawater. On day 38, the salinity data appears to jump from a near-zero value, steadily increasing until around day 43, where it stayed around 30psu. Nearby...
Salinity Spikes: Sensor or Environment?
These data show a subtle problem that is producing “fuzzy” salinity and oxygen data. While the overall shape of the profile appears reasonable, small spikes are present throughout the CTD cast. The black lines encompass a particularly strange spot where both salinity...
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Seattle Ocean Science Happy Hour
Please join us alongside BioSonics, Marine Technology Society, and Sequoia Scientific as we host a Seattle Ocean Science & Technology Conference Happy Hour! Date: Wednesday, November 29, 2023 from 5:30 - 8:30pm Location: National Nordic Museum | 2655 NW Market...
Featured in ECO Mag: Deep-Sea Exploration with the SBE 49 FastCAT
We were excited to be featured in ECO magazine’s latest digital edition of their Deep-Sea Exploration series. In the spring of 2018, Triton Submarines reached out to the team at Sea-Bird Scientific, to express interest in using our SBE 49 FastCAT CTD (conductivity,...
ADMT-24
Sea-Bird Scientific is excited to be attending ADMT-24 in Hobart, Tasmania from October 23 - 27. The Argo Data Management Team Meeting is a time for the data managers who contribute to international Argo to come together and discuss technical matters pertaining to the...
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